:root { --ink:#17211b; --muted:#718078; --line:#e1e8e1; --cream:#f6f7f1; --paper:#fff; --green:#1e6a4b; --lime:#c7ee66; --orange:#e96f3a; --shadow:0 22px 70px rgba(23,33,27,.10); }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { margin:0; background:var(--cream); color:var(--ink); font-family:'Noto Sans JP',sans-serif; }
a { color:inherit; text-decoration:none; }
.mono { font-family:'DM Mono',monospace; letter-spacing:.08em; }
.site-header { min-height:76px; padding:0 5vw; display:flex; align-items:center; justify-content:space-between; gap:24px; border-bottom:1px solid rgba(225,232,225,.8); background:rgba(246,247,241,.86); backdrop-filter:blur(14px); position:sticky; top:0; z-index:20; }
.brand { display:flex; align-items:center; gap:12px; font-weight:900; letter-spacing:-.04em; font-size:1.1rem; white-space:nowrap; }
.brand small { color:var(--muted); font-weight:500; }
.brand-mark { width:34px; height:34px; border-radius:11px; background:var(--ink); color:var(--lime); display:grid; place-items:center; font-size:.75rem; }
.site-nav { display:flex; align-items:center; justify-content:flex-end; gap:22px; font-size:.78rem; font-weight:800; color:var(--muted); }
.site-nav a:hover, .site-nav a.active { color:var(--green); }
.nav-cta { padding:10px 15px; border-radius:999px; background:var(--ink); color:white !important; }
.container { width:min(1120px,90vw); margin:auto; }
.page-hero { padding:95px 0 88px; background:radial-gradient(circle at 85% 25%,rgba(199,238,102,.25),transparent 32%),radial-gradient(circle at 15% 80%,rgba(30,106,75,.08),transparent 35%); }
.eyebrow { color:var(--green); font-size:.7rem; font-weight:900; letter-spacing:.18em; text-transform:uppercase; }
h1 { max-width:800px; margin:18px 0 22px; font-size:clamp(2.6rem,6vw,5rem); line-height:1.08; letter-spacing:-.075em; }
h1 em { color:var(--green); font-style:normal; }
.lead { max-width:680px; color:#526159; font-size:1rem; line-height:2; }
.hero-actions { display:flex; flex-wrap:wrap; gap:10px; margin-top:30px; }
.btn { min-height:47px; padding:0 20px; border-radius:999px; display:inline-flex; align-items:center; justify-content:center; font-size:.82rem; font-weight:900; transition:.2s; }
.btn:hover { transform:translateY(-2px); }
.btn-primary { background:var(--ink); color:#fff; box-shadow:0 10px 24px rgba(23,33,27,.15); }
.btn-primary:hover { background:var(--green); }
.btn-soft { border:1px solid var(--line); background:rgba(255,255,255,.65); }
.btn-soft:hover { background:#fff; }
.section { padding:88px 0; }
.section-muted { background:#e9f1e8; }
.section-dark { background:var(--ink); color:#fff; }
.section-dark .eyebrow { color:var(--lime); }
.section-head { display:flex; align-items:end; justify-content:space-between; gap:22px; margin-bottom:34px; }
.section-head h2 { margin:10px 0 0; font-size:clamp(1.7rem,3.4vw,2.8rem); line-height:1.2; letter-spacing:-.06em; }
.section-head p { max-width:480px; color:var(--muted); font-size:.84rem; line-height:1.85; }
.section-dark .section-head p { color:#a8b4a9; }
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; }
.grid-2 { display:grid; grid-template-columns:repeat(2,1fr); gap:14px; }
.card { background:#fff; border:1px solid var(--line); border-radius:20px; padding:25px; }
.card h3 { margin:18px 0 8px; font-size:1rem; letter-spacing:-.03em; }
.card p { margin:0; color:var(--muted); font-size:.78rem; line-height:1.8; }
.feature-icon { width:45px; height:45px; display:grid; place-items:center; border-radius:14px; background:#e8f4df; color:var(--green); font-size:1.3rem; }
.feature-code { color:var(--green); font-size:.67rem; font-weight:900; letter-spacing:.12em; }
.number { color:var(--green); font-size:1.1rem; font-weight:900; }
.flow-list { display:grid; gap:12px; }
.flow-row { display:grid; grid-template-columns:80px 1fr 1fr; gap:24px; align-items:center; padding:22px 0; border-bottom:1px solid var(--line); }
.flow-row h3 { margin:0 0 7px; font-size:1rem; }
.flow-row p { margin:0; color:var(--muted); font-size:.78rem; line-height:1.75; }
.flow-tag { justify-self:end; padding:8px 12px; border-radius:999px; background:#edf6e8; color:var(--green); font-size:.68rem; font-weight:900; }
.plan { position:relative; }
.plan.featured { border:2px solid var(--green); box-shadow:var(--shadow); }
.plan-badge { position:absolute; top:-13px; right:19px; padding:6px 10px; border-radius:999px; background:var(--lime); font-size:.64rem; font-weight:900; }
.plan h3 { font-size:1.25rem; margin:0 0 8px; }
.plan-label { color:var(--green); font-size:.68rem; font-weight:900; letter-spacing:.12em; }
.plan ul { list-style:none; padding:0; margin:21px 0 0; display:grid; gap:11px; }
.plan li { color:#536158; font-size:.78rem; line-height:1.5; }
.plan li::before { content:'✓'; margin-right:8px; color:var(--green); font-weight:900; }
.faq-list { display:grid; gap:10px; }
details { background:#fff; border:1px solid var(--line); border-radius:15px; padding:18px 20px; }
summary { cursor:pointer; font-size:.86rem; font-weight:900; }
details p { margin:14px 0 0; color:var(--muted); font-size:.78rem; line-height:1.85; }
.callout { background:var(--ink); color:#fff; border-radius:25px; padding:40px; display:flex; align-items:center; justify-content:space-between; gap:30px; }
.callout h2 { margin:0 0 10px; font-size:clamp(1.45rem,3vw,2.25rem); letter-spacing:-.06em; }
.callout p { margin:0; color:#a8b4a9; font-size:.82rem; line-height:1.8; }
.footer { padding:32px 5vw; display:flex; justify-content:space-between; gap:15px; color:var(--muted); font-size:.7rem; }
@media (max-width:820px) { .site-header { padding:14px 5vw; align-items:flex-start; flex-direction:column; } .site-nav { width:100%; justify-content:flex-start; gap:14px; overflow:auto; } .page-hero { padding:70px 0; } .section-head { display:block; } .section-head p { margin-top:14px; } .grid-3 { grid-template-columns:1fr 1fr; } .flow-row { grid-template-columns:60px 1fr; gap:16px; } .flow-tag { grid-column:2; justify-self:start; } .callout { display:block; } .callout .btn { margin-top:22px; } }
@media (max-width:560px) { .site-nav { font-size:.69rem; gap:11px; } .nav-cta { padding:8px 11px; } .grid-3,.grid-2 { grid-template-columns:1fr; } h1 { font-size:2.8rem; } .section { padding:70px 0; } .card { padding:21px; } .footer { flex-direction:column; } }